My vote is for the Sumo 9. I acquired one at the end of last year and had Mike Bettinger of GASAudio.net restore it this summer. The Nine really does sound phenomenal. After letting it warm up properly the music it makes is wonderful. From cold start it sounds fine but with the full warm up time it sounds great. The only thing I don't like about it is the fan noise. The 9 runs hot and the fan helps keep things cool but I can't find an AC fan that can push out decent CFM that is quieter than 33dBs.